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Breakdown of the TLS_ECCPWD_WITH_AES_128_GCM_SHA256 cipher suite

Cyber Security Rating for TLS_ECCPWD_WITH_AES_128_GCM_SHA256 - A


Key Exchange Mechanism

Elliptic Curve Cryptography Password-ECCPWD

ECCPWD (Elliptic Curve Cryptography Password-based key Derivation) is a cryptographic protocol that enhances security in password-based authentication systems. It leverages elliptic curve cryptography (ECC) to derive strong encryption keys from passwords, significantly reducing vulnerability to brute-force attacks. ECCPWD integrates seamlessly into cipher suites, providing robust encryption and authentication for secure communication. Its efficiency and high security make it particularly suitable for modern applications, ensuring that even weak, low-entropy passwords are protected by the strength of ECC.



Advanced Encryption Standard-AES

AES should be used in cipher suites because it offers strong security with efficient performance, large block size (128 bits), and resistance to known attacks. Its widespread adoption and thorough analysis by the cryptographic community ensure reliability and robustness for encrypting sensitive data.



Secure Hash Algorithm 256 Bit-SHA256

Improving greatly from SHA1, SHA-256 and above create secure hashes through robust cryptographic algorithms that ensure collision resistance and preimage resistance. They process input data in fixed-size blocks, applying complex mathematical transformations that make it computationally impractical to reverse-engineer the original data from its hash.


Key Size

128 Bit-128

128-bit symmetric encryption keys are considered secure because they provide an astronomically large number of possible combinations (2^128), making brute-force attacks computationally infeasible with current technology. This level of security is sufficient for most practical purposes and is widely adopted in various encryption protocols.


Cipher Mode

Galois/Counter Mode-GCM

GCM (Galois/Counter Mode) is a mode of operation for block ciphers, offering both encryption and authentication. Widely used in cipher suites, GCM ensures data confidentiality and integrity with high efficiency and performance. It combines the Counter (CTR) mode for encryption with a Galois field-based authentication tag for data integrity. GCM's parallelizable nature makes it particularly fast and suitable for high-speed networks and secure communications. By incorporating GCM, cipher suites provide robust security against unauthorized access and tampering, making it a preferred choice for modern cryptographic protocols.

Web infrastructure owners must ensure they only allow secure cipher suites to protect against potential security threats. Cipher suites determine the encryption algorithms and key exchange mechanisms used in HTTPS connections. Insecure cipher suites can leave data vulnerable to interception, decryption, and manipulation by malicious actors. By restricting to secure cipher suites, owners mitigate risks such as data breaches, unauthorized access, and compromise of sensitive information. This proactive measure helps maintain trust with users, ensures compliance with security standards, and safeguards the integrity and confidentiality of data transmitted over the web.
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